erlang test 生成 dets

引用

erlang 生成dets成功事例

-module (dets_upload).
-compile(export_all).
-export([benchmark/1]).
benchmark(Ticket) ->
  {ok,ListAll} = file:read_file("d:/erlangdemo/dets/"++Ticket++".txt"), 
  ListAll1 = binary_to_list(ListAll),
  dets:open_file(Ticket, [{type, set},{file,"D:/erlangdemo/dets/"++Ticket++""}]),
  Array = parse_to_line_array(ListAll1,["\r","\n"]),
  loopList(Array,Ticket),
  io:format("Upload Success!").
%循环将数据插入DETS
loopList([H|T],Ticket) ->
  Line = list_to_term(H),
  dets:insert(Ticket,Line),
  loopList(T,Ticket);
loopList([],Ticket) -> ok.  

%解析数据
parse_to_line_array(String, []) ->
  io:format("attention!!! parse line error !!!!!!!!!! ~p~n", [String]), [];
parse_to_line_array(String, [H|T]) ->
  Array = string:tokens(String, H),
  case length(Array) of
    1 -> parse_to_line_array(String, T);
    LineNo when LineNo > 1 -> Array
  end. 

list_to_term(String) ->
    {ok, T, _} = erl_scan:string(String++"."),
    case erl_parse:parse_term(T) of
        {ok, Term} ->
            Term;
        {error, Error} ->
            Error
    end.  

.txt文件下面有可以下载
在本地建立文件夹 放里面就可以用了

祝你好运！